# Markets Prices question

**URL:** <https://forums.eveonline.com/t/markets-prices-question/58266>\
**Category:** Third Party Developers\
**Created:** [February 19, 2018, 4:21pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266 "2018-02-19T16:21:01Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Marie\_Kaster](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/marie_kaster/32/202317_2.png) [@Marie\_Kaster](https://forums.eveonline.com/u/Marie_Kaster)\
**Post date:** [February 19, 2018, 4:21pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266/1 "2018-02-19T16:21:01Z")

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When looking at the returned data from /markets/prices/, I see `{"type_id":34,"average_price":5.22,"adjusted_price":4.53}`. What is the difference between the Average Price and the Adjusted Price?

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**Author:** ![Obil\_Que](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/obil_que/32/171329_2.png) [@Obil\_Que](https://forums.eveonline.com/u/Obil_Que)\
**Post date:** [February 19, 2018, 4:31pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266/2 "2018-02-19T16:31:30Z")

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Looks like 0.69

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**Author:** ![Blacksmoke16](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/blacksmoke16/32/376589_2.png) [@Blacksmoke16](https://forums.eveonline.com/u/Blacksmoke16)\
**Post date:** [February 19, 2018, 4:34pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266/3 "2018-02-19T16:34:03Z")

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> [@Adjusted price vs sell order](https://forums.eveonline.com/t/adjusted-price-vs-sell-order/13831/2):
>
> ‘Adjusted Price’ is a formula mostly used by the Devs for statistical purposes. We know that it is Global, covering all of EVE and that it is a 30-day rolling average but it also has some secret tweaks intended to prevent it being manipulated by players.
> 
> It impacts manufacturing because it is used to calculate factory costs. I pull it from the SWAGGER API for my spreadsheet, there are other sources.

While average would just be the 30-day rolling average without the tweaks.

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**Author:** ![Marie\_Kaster](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/marie_kaster/32/202317_2.png) [@Marie\_Kaster](https://forums.eveonline.com/u/Marie_Kaster)\
**Post date:** [February 19, 2018, 4:43pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266/4 "2018-02-19T16:43:08Z")

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Awesome thanks for the info.

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**Author:** ![salacious\_necrosis](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/salacious_necrosis/32/136554_2.png) [@salacious\_necrosis](https://forums.eveonline.com/u/salacious_necrosis)\
**Post date:** [February 19, 2018, 5:16pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266/5 "2018-02-19T17:16:22Z")

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You also use adjusted price to compute refinement tax. See: [https://orbitalenterprises.github.io/eve-market-strategies/index.html#ore-and-ice-refinement-arbitrage](https://orbitalenterprises.github.io/eve-market-strategies/index.html#ore-and-ice-refinement-arbitrage) for a very detailed description.

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**Author:** ![system](https://global.discourse-cdn.com/eveonline/original/3X/4/1/41ec4921cbaca7a6f9ea556e7cc20018461eae5e.png) [@system](https://forums.eveonline.com/u/system)\
**Post date:** [May 20, 2018, 5:16pm UTC](https://forums.eveonline.com/t/markets-prices-question/58266/6 "2018-05-20T17:16:24Z")

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